Title:
SEALING DEVICE FOR POUCH-TYPE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2024/043551
Kind Code:
A1
Abstract:
The present invention relates to a sealing device for a pouch-type secondary battery. The sealing device includes a light source unit that radiates light, and a pressurizing unit that heats and presses a sealing portion of a pouch case by using the light radiated from the light source unit, wherein a first light-transmitting material having a high thermal conductivity and light refractive index is applied to a sealing unit of the pressurizing unit that contacts the sealing portion of the case, so that not only can the sealing portion of the case be uniformly sealed, but damage to the sealing unit heated to a high temperature during sealing can be prevented, thus the present invention has the advantages that the quality of a secondary battery can be improved, and at the same time, processability and economic efficiency are improved.
Inventors:
YOON SEONG JAE (KR)
BAEK JU HWAN (KR)
LEE JIN SOO (KR)
LEE SEUNG BAE (KR)
JO KWANG UN (KR)
BAEK JU HWAN (KR)
LEE JIN SOO (KR)
LEE SEUNG BAE (KR)
JO KWANG UN (KR)
Application Number:
PCT/KR2023/010720
Publication Date:
February 29, 2024
Filing Date:
July 25, 2023
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
B29C65/00; B29C65/18; B29C65/24; H01M50/105; H05B3/00; B29L31/00
Foreign References:
| KR20210156516A | 2021-12-27 | |||
| KR102252162B1 | 2021-05-14 | |||
| KR20120056316A | 2012-06-04 | |||
| KR20220068815A | 2022-05-26 | |||
| KR20130008473A | 2013-01-22 |
Attorney, Agent or Firm:
KIM, Hong Gyun (KR)
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